OPA2991IDR

Instrumentation, Op Amps, Buffer Amps Overview

The OPA2991IDR is a dual operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC package. It features a gain-bandwidth product of 4.5 MHz and a slew rate of 21 V/us. The device operates on a supply voltage range from 2.7 V to 40 V with a typical quiescent current of 560 uA per channel. Key electrical specifications include a maximum input offset voltage of 125 uV, input bias current of 10 pA, and a common-mode rejection ratio of 130 dB. Input voltage noise density is specified at 10.8 nV/sqrt Hz, supporting low-noise applications.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail input and output capability for extended dynamic range
• Low power consumption suitable for battery-operated systems
• High precision performance with low offset voltage and noise

Instrumentation, Op Amps, Buffer Amps Applications

• Precision signal conditioning circuits
• Industrial process control sensors
• Medical instrumentation front-ends

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix ID against official Texas Instruments documentation to confirm the SOIC-8 package type and industrial temperature rating. Ensure compatibility with design requirements regarding rail-to-rail operation and supply voltage limits before procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high precision and low power are required alongside rail-to-rail I/O capabilities. Compare against the OPA2990 series if lower bandwidth is acceptable for reduced power consumption. Verify that the 4.5 MHz bandwidth meets the system's signal frequency requirements.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the OPA299x family of low-power, precision operational amplifiers. The family includes variants such as the OPA2990 and OPA2991, differentiated primarily by their gain-bandwidth products. These devices utilize CMOS architecture to achieve low quiescent current while maintaining high accuracy.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The OPA2990IDR is a related variant within the same family offering different bandwidth characteristics. Verify functional equivalence regarding pinout and electrical parameters before substitution.